In winter, except for a few southern areas, the temperature in most parts of China is low, and ordinary waterproof materials are not suitable for construction. However, for households in urgent need of decoration or leakage treatment, how to select waterproof materials and what should be paid attention to in winter construction of waterproof works? In this issue, Ding Ding and Tongtong have prepared this winter construction case of waterproof maintenance of home decoration for you.
Uncle Wang, who lives in Anjuyuan, Shushan District, is very depressed these days. Let's start with the bathroom. Uncle Wang's house was decorated more than ten years ago. The waterproof layer is as durable as human beings, "Aged" waterproof layer is increasingly difficult to play a waterproof role. Slightly careless, there is a little water in the shower room, which will seep down immediately, and it will flow into a water curtain hole downstairs soon. That day, someone downstairs knocked at the door and said that it was missing again. Uncle Wang's wife Aunt Liu saw that everything in the bathroom was old and not presentable. In addition, there was always water leakage downstairs, so she dared not even take a bath. What she said, she had to take the bathroom apart and redo it. At first, Uncle Wang disagreed. He was worried that the weather was not suitable for waterproofing, but his wife had the final say. Uncle Wang had to consult Xiao Li, the waterproof engineer of Zhongtong Waterproof Engineering Co., Ltd.
Hearing this, Xiao Li patted his chest and said that as long as he did what I said, he would be fine; Waterproof construction in winter will not cause problems as long as the method is correct. So Uncle Wang's family moved to his son's house, and the workers removed the toilet of Uncle Wang's house.
Waterproof engineer Xiao Li told the workers that, For waterproofing, as long as the construction temperature is not lower than 5℃ With certain thermal insulation facilities, the construction is no problem. In addition, brand coating products are generally subject to strict low-temperature performance testing, Even if there is no problem in transportation and storage in cold winter, The quality will not be affected. Xiao Li asked workers to chisel the decorative bricks on the floor and wall of the toilet to the structural base course, exposing the sewer nozzle, and then chose a two-component polyurethane waterproof coating as a flexible waterproof layer. One component polyurethane waterproof coating, which is common on the market, tends to dry slowly in winter. The two-component polyurethane waterproof coating is selected because it is reactive curing, which is faster than the general one component polyurethane waterproof coating, and is more suitable for construction in winter when the temperature is low. The next step is to start waterproof work.
first Wet the base surface to let it absorb water first. On the one hand, avoid the base layer being too dry so that a large amount of water in the waterproof material is absorbed by the base layer, thus reducing the waterproof strength; On the other hand, it is also to improve construction efficiency and facilitate operation. But there should not be too much water, and we must master the degree.
Then it is the base treatment, In addition to necessary dust removal and repair, the waterproof base surface must be carefully checked for structural defects. Honeycombs, holes, cracks, and the surrounding of upper and lower water pipes on the base surface shall be filled and smoothed with slurry mixed with plugging materials. Sharp edges and projections shall be removed. The loose and porous base surface shall be trowelled with waterproof paint and scraped flat. The internal and external corners and other nodes shall be made into arc corners.
▲ Reinforce pipe root with plugging king
Next is painting. Xiao Li asks workers to use brushes Evenly brush the slurry on the base surface , no drum is used, because Although the roller can also be applied with waterproof paint, it can only be used on a very flat base surface. If the base surface is slightly uneven, it is easy to miss painting. Brush with a brush to prevent water. The film is exquisite and beautiful, and the edges and corners can also be taken care of.
During painting, Local painting shall be carried out from top to bottom and from left to right. To ensure the coating thickness and the recommended amount for construction, thin brushing is required for winter construction, so as to prevent the coating layer from cracking due to the over thick coating layer and uneven moisture drying (non-woven fabric can be added between the first and second brushing for strengthening treatment). In addition, the slurry is too thin or mixed unevenly, which is easy to powder or shell.
In the process of large area painting, Xiao Li explains The bricklayer painted a total of three Times , all techniques are Vertically cross and crisscross. And the next coat shall be painted after the previous coat is fully cured. such Total thickness of waterproof layer Can be effectively guaranteed 。
After the curing of the film, Xiao Li chose the construction polymer cement waterproof mortar as the protective layer. Waterproof layer construction completed twenty-four Hours later, the closed water test shall be carried out with the cooperation of users downstairs. After passing the test, the next construction process can be started. When Uncle Wang saw that the workers were working carefully, he slowly let go of his suspense. After the bathroom was renovated, my wife could finally take a bath at ease. Seeing his wife happy, Uncle Wang was satisfied.
Here, Ding Dinghe Tongtong also reminds: Remember to protect the waterproof area after the completion of the project, otherwise the subsequent project will cause damage to the waterproof membrane, which will also lead to water leakage in the future. in addition Toilet waterproofing is both technical and meticulous. We must find a trustworthy company and a construction team with reliable reputation. After all, every price is worth every product. Never go to the guerrillas, because there is no after-sales service, it is difficult to get security if there is a problem.
